<script setup>
import {ref, reactive} from 'vue'
import {useRouter} from 'vue-router'

const router = useRouter()
import request from '../utils/request'

let loginUser = reactive({
  username: "",
  userPwd: ""
})
let usernameMsg = ref("")
let userPwdMsg = ref("")

function checkUsername() {
  let usernameReg = /^[a-zA-Z0-9]{5,10}$/
  if (!usernameReg.test(loginUser.username)) {
    usernameMsg.value = "格式有误"
    return false
  }
  usernameMsg.value = "OK"
  return true
}

function checkUserPwd() {
  let userPwdReg = /^[0-9]{6}$/

  if (!userPwdReg.test(loginUser.userPwd)) {
    userPwdMsg.value = "格式有误"
    return false
  }

  userPwdMsg.value = "OK"
  return true
}

async function login() {
  // 表单数据格式都正确再提交
  let flag1 = checkUsername()
  let flag2 = checkUserPwd()
  if (!(flag1 && flag2)) {
    return
  }
  let {data} = await request.post("user/login", loginUser)
  if (data.code == 200) {
    alert("登录成功")
    // 跳转到showSchedule
    router.push("/showSchedule")
  } else if (data.code == 503) {
    alert("密码有误")

  } else if (data.code == 501) {
    alert("用户名有误")
  } else {
    alert("未知错误")
  }
}
</script>
<template>
  <div>
    <h3 class="ht">请登录</h3>
    <table class="tab" cellspacing="0px">
      <tr class="ltr">
        <td>请输入账号</td>
        <td>
          <input class="ipt"
                 type="text"
                 v-model="loginUser.username"
                 @blur="checkUsername()">
          <span id="usernameMsg" v-text="usernameMsg"></span>
        </td>
      </tr>
      <tr class="ltr">
        <td>请输入密码</td>
        <td>
          <input class="ipt"
                 type="password"
                 v-model="loginUser.userPwd"
                 @blur="checkUserPwd()">
          <span id="userPwdMsg" v-text="userPwdMsg"></span>
        </td>
      </tr>
      <tr class="ltr">
        <td colspan="2" class="buttonContainer">
          <input class="btn1" type="button" @click="login()" value="登录">
          <input class="btn1" type="button" value="重置">
          <router-link to="/regist">
            <button class="btn1">去注册</button>
          </router-link>
        </td>
      </tr>
    </table>
  </div>
</template>
<style scoped>
.ht {
  text-align: center;
  color: cadetblue;
  font-family: 幼圆;
}

.tab {
  width: 500px;
  border: 5px solid cadetblue;
  margin: 0px auto;
  border-radius: 5px;
  font-family: 幼圆;
}

.ltr td {
  border: 1px solid powderblue;
}

.ipt {
  border: 0px;
  width: 50%;
}

.btn1 {
  border: 2px solid powderblue;
  border-radius: 4px;
  width: 60px;
  background-color: antiquewhite;
}

#usernameMsg, #userPwdMsg {
  color: gold;
}

.buttonContainer {
  text-align: center;
}
</style>